American Dryer Corp. ML-310 Instrukcja Obsługi

ML-310 Phase 7Service Manualwith Tilt Options0906000DMG/tcosta ADC Part No. 450421American Dryer Corporation88 Currant RoadFall River, MA 02720-4781Te

6WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create afire hazard.WARNING: DO NOT use heat for drying articles that

96SECTION VIPHASE 7 OPL SYSTEM DIAGNOSTICSIMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY andTHE GAS SUPPLY or THE STEAM SUPPLY BEFORE

97FAN CONTACTOR FAULT - The fan contactor was not pulled in.FRONT BURNER HI-LIMIT FAULT - Indicates the temperature disk in the front burner has opene

98Input/Output (I/O) Board Input Description (Red light emitting diode [L.E.D.])1. FDRC – (RED L.E.D.) This L.E.D. will indicate the status of the Fro

9916. LINT – (RED L.E.D.) This L.E.D. will indicate the status of the Lint Drawer. If the drawer is closed,then the L.E.D. is ON.17. 24VM – (RED L.E.

100Input/Output (I/O) Board Output Description (Green light emitting diode [L.E.D.])1. R_HEAT – (GREEN L.E.D.) This L.E.D. will indicate the status of

10117. OCL5 – (GREEN L.E.D.) This L.E.D. will indicate the status of the Open Collector #5 output. If therequest to turn on the Open Collector #5 is

102SECTION VIITROUBLESHOOTINGIMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY andTHE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or

103NOTE: SPRINKLER MUST HAVE POWER FOR THE DRYER TO OPERATE.B. Drive motor is not operating (does not start)...* Microprocessor controller (computer)

104f. V-belts are too tight.g. Dryer has an oversized load.h. Voltage to the dryer is incorrect...check dryer data label for specified voltage.2. Fail

1052. Failed overload protector...a. Incorrect overload setting.3. Blown drive motor and blower (fan and impellor) motor fuses or overloads.4. Failed

7SECTION IIROUTINE MAINTENANCEA. CLEANINGA schedule should be established for periodic inspection, cleaning, and removal of lint from various areas o

1065. Front or rear doors are opened during cycle.6. Failed microprocessor controller (computer) input/output (I/O) board.J. Microprocessor controller

1072) Failure in drive motor circuit.b. Faulty rotation sensor.c. Broken wire or connection between rotation sensor and microprocessor controller (com

10813. Steam damper system is not functioning properly (for STEAM MODELS ONLY)...a. Steam damper sticking closed.b. Leak in pneumatic system.14. Under

109* Tilt to unload.1. Correct door signals are not present...a. Door open to tilt down.b. Door closed to tilt level.2. Defective proximity switch.3.

110SECTION VIIIPROCEDURE FOR FUNCTIONAL CHECKOF REPLACEMENT COMPONENTS1. For Models With Johnson Controls Direct Spark Ignition (DSI) Module (G760)The

1112.For Direct Spark Ignition (DSI) System Models Manufactured With ADC Module Part No. 880815a. Upon completing installation of thereplacement DSI m

ADC 450421 1- 10/03/00-10

8WARNING: TO AVOID THE HAZARD OF ELECTRICAL SHOCK, DISCONTINUEELECTRICAL SUPPLY TO THE DRYER.MONTHLYEmpty the compressed air filter bowl.NOTE: REGULAT

9B. LUBRICATIONMONTHLYThe two (2) bearings that support the impellor/fan shaft must be lubricated. Use Shell Alvania #2 grease or itsequivalent. Ge

10EVERY 6 MONTHSChange gear oil in tumbler shaft gear reducer.1. Remove the drain plug (located at the bottom rear of the reducer).2. After oil is com

11SECTION IIISPECIFICATIONS and DIMENSIONSA. SPECIFICATIONS (Gas and Steam Models)* Dryer must be provided with a clean, dry, and regulated 80 PSI +/

12NOTE: ADC reserves the right to make changes in specifications at any time without notice orobligation.B. DIMENSIONS

13NOTE: ADC reserves the right to make changes in specifications at any time without notice orobligation.

14NOTE: ADC reserves the right to make changes in specifications at any time without notice orobligation.

15SECTION IVINSTALLATION REQUIREMENTSInstallation should be performed by competent technicians in accordance with local and state codes. In theabsenc

Retain This Manual In A Safe Place For Future ReferenceAmerican Dryer Corporation products embody advanced concepts in engineering, design, and safety

16B. ELECTRICAL and GAS REQUIREMENTSIt is your responsibility to have ALL electrical connections made by a properly licensed and competent electricia

17SECTION VCOMPONENT DESCRIPTION/REPLACEMENTA. HEAT SECTIONThe ML-310 dryer uses three (3) types of heat sources: natural gas, liquid propane (L.P.)

18330º F (166º C) ThermostatSail Switch Assemblya. The Direct Spark Ignition (DSI)module is a 24 VAC devicedesigned to be the “controller” ofthe DSI s

19e. The Manual Reset Basket (tumbler) Hi-Limit Switch is athermostat type switch located above the lint basket. Its functionis to discontinue heat (

20Is 24 VAC availableat transformer?Is 24 VAC present from terminalTHS(2) to ground?Is power availableto primary?Are thermostat contacts andhi-limit c

21i. Troubleshooting Flowchart - Quick Reference...Second Visual CheckSpark Present But Main Burner Does Not Come OnIs main valve wiring securelyattac

22j. Troubleshooting Flowchart - Quick Reference...Third Visual CheckMain Burner Lights But Will Not Stay OnIs flame sensor cablesecurely attachedto s

23B. TROUBLESHOOTING THE DIRECT SPARK IGNITION (DSI) SYSTEMNOTE: The troubleshooting information provided in this manual is intended for use by quali

241. Direct Spark Ignition (DSI) Troubleshooting Terms (definitions) ADC (DSI) Control Module P/N 128973a. DSI MODULE “RED” L.E.D. INDICATOR LIGH

25If the dryer repeatedly has Direct Spark Ignition (DSI) module “LOCKOUT” failures, the causemay be due to high voltage not getting into the DSI modu

IMPORTANTYOU MUST DISCONNECT and LOCKOUT THE ELECTRICSUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANYCOVERS or GUARDS ARE REMOVED FROM THE MAC

26c. Three (3) Visual Checks1) Does the Direct Spark Ignition (DSI) Ignitor/Flame-Probe Assembly start sparking?If not, refer to the FIRST VISUAL CHEC

27d. Troubleshooting Flowchart - Quick Reference...First Visual Check(Does Ignitor Spark?)Is spark evident (on)at Ignitor Assembly?Is 24 Voltspresent

28e. Troubleshooting Flowchart - Quick Reference...Second Visual Check(Does Main Burner Ignite?)Doesmain burnerlight?Is manualknob on the Gas Valvein

29f. Troubleshooting Flowchart - Quick Reference...Third Visual Check(Does Main Burner Ignite?)Doesmain burnerremainlit?Doesthe Flame Probehave carbon

303. Troubleshooting and System Detailed Diagnosis For Johnson Direct Spark Ignition (DSI) Module P/N 128935When the dryer calls for heat, 24 VAC from

31a) Connect the water column test gauge (manometer) to the gas valve pressure tap (1/8” N.P.T.).Refer to the illustration on the previous page (page

32(a) To check and/or set the 1/8” (3.175 mm) GAP, use a Direct Spark Ignition (DSI) GAPFeeler Gauge or similar device to determine GAP size. DO NOT

333) Air TurbulenceIf there is sail switch flutter due to air turbulence or improper impellor (fan/blower) rotation or arestriction in the exhaust duc

34CAUTION: DO NOT LET THE IGNITOR/FLAME-PROBE ASSEMBLY TOUCH THEBURNER TUBES; OTHERWISE THE ENTIRE ASSEMBLY WILL SHORTOUT.6) Direct Spark Ignition (DS

354.Troubleshooting and System Detailed Diagnosis For ADC Direct Spark Ignition (DSI) Module P/N 128973When the dryer calls for heat, 24 VAC from the

IMPORTANTPLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on theequipment and specified in the installation and operator's manual includedwith the

36a) Connect the water column (W.C.) test gauge (manometer) to the gas valve pressure tap (1/8”N.P.T.). Refer to the illustration on the previous pag

37(a) To check and/or set the 1/8” (3.175 mm) GAP, use a Direct Spark Ignition (DSI) GAPFeeler Gauge or similar device to determine GAP size. DO NOT

383) Air TurbulenceIf there is sail switch flutter due to air turbulence or improper impellor (fan/blower) rotation or arestriction in the exhaust duc

39CAUTION: DO NOT LET THE IGNITOR/FLAME-PROBE ASSEMBLY TOUCH THEBURNER TUBES; OTHERWISE THE ENTIRE ASSEMBLY WILL SHORTOUT.6) Direct Spark Ignition (DS

40C. NATURAL GAS and LIQUID PROPANE (L.P.) GAS CONVERSION INSTRUCTIONSIMPORTANT: CONVERSION MUST BE PERFORMED BY COMPETENT TECHNICIANSIN ACCORDA

4111. Reverse the procedure for reinstalling the gas valve/manifold assembly to the dryer.12. Open ALL gas shutoff valves (closed in Step #2).13. Rees

421. Steam Coil PH LevelThe normal PH level for copper type steam coils must be maintained between a value of 8.5 to 9.5. Forsteel type steam coils t

43The steam damper plate should open and close slowly and smoothly. The speed can be modulated byadjusting the needle valve knob. Turning the knob c

445) Remove the valve from the bracket.6) Unscrew the valve from the outlet side.7) To install new steam solenoid valve, reverse above procedure (Step

456) Remove steam coil damper cylinder (piston).7) Remove the steam coil damper by unbolting from its hinges.8) Disconnect steam supply lines and stea

Table of ContentsML-310 REFERENCE GUIDE (Basket [Tumbler] Section)... 3ML-310 REFERENCE GUIDE (Base Section)...

46E. SPRINKLER SYSTEM DESCRIPTIONThe sprinkler system is monitored by a microprocessor based temperature controller as a designated “FAIL-SAFE.” The

47MAN3488d. Sprinkler Digital Temperature ControllerThe sprinkler digital temperature controller is a programmablemicroprocessor used to monitor tempe

485) Remove the wires of the Resistive Temperature Device (RTD) from the terminal strip.NOTE: Identify the wires removed for proper reinstallation.6)

49WARNING: THE SPRINKLER CIRCUIT HAS A SEPARATE POWER SUPPLY (than the powersupply for the dryer). DISCONNECT and LOCK OUT BOTH POWERSUPPLIES BEFORE

506) Mount the top of the control relay to the top of the din rail, then press down and snap the bottom intothe rail.Set the overload to the setting s

51

52The tilting system in the dryer, whether it be 1-Way Tilt or 2-Way Tilt, is controlled by the TSX-07 Programmable LogicController (PLC). The PLC wi

531. Tilting Solenoid ValveThe dryer uses a 3-position/4-way/5-port, spring centering double solenoid valve. With no power applied toeither solenoid,

54a. Tilting Solenoid Replacement1) Engage “EMERGENCY STOP” (E-Stop)...Discontinue electrical power to the dryer.2) Remove panel covering the pneumati

5510) Remove the two (2) 3/8” mufflers. (Refer to the illustration on page 56.)Reinstall these mufflers on the new solenoid valve body.11) The left o

SECTION VIPHASE 7 OPL SYSTEM DIAGNOSTICS ...96A. Diagnostic (L.E.D. Display) Fault Messages ..

56c. Tilting Piston Replacement1) Disconnect compressed air supply from the dryer.2) Tilt, then level the dryer to exhaust as much air as possible.3)

579) Carefully remove the E-clips from the clevis pins.10) Remove clevis pins.11) Loosen the bottom setscrew in the piston rod eye.12) Unscrew the pis

58G. AIR JET ASSEMBLY1. Air Jet Assembly DescriptionThe air jet assembly is located in the left front base of the dryer. The air jet is designed to

595) Remove the valve support.6) Remove the two (2) #6-32 x 1” hex head machine bolts by removing the two (2) #6 hex nuts and thetwo (2) #6 star washe

60H. BLOWER (Squirrel Cage Fan) MOTOR ASSEMBLY1. Blower (squirrel cage fan) Motor DescriptionThe dryer uses an 18-inch (45.72 cm) diameter, blower (s

612. Blower (squirrel cage fan) Motor Component Replacementa. Blower (squirrel cage fan) Motor Replacement1) Discontinue electrical power to the dryer

6218) Replace the V-belts...a) Adjust to proper tension by adjusting position of the new blower (squirrel cage fan) motor.b) Align the V-belts.19) Tig

63d) Loosen the setscrews on the bushing.e) Remove the bushing and the pulley.11) Remove the pillow block bearing with shroud by removing the setscrew

647) Remove the 1/4” x 1/4” x 1-3/4” (6.35 mm x 6.35 mm x 4.45 cm) key on the blower (squirrel cagefan) shaft.a) Slide the blower (squirrel cage fan)

65a) Thermal Magnetic Starter (TMS) Replacement(1) Discontinue electrical power to the dryer.(2) Mark L1, L2, L3, and T1, T2, T3 on the wires to the T

3ML-310 Reference Guide(Basket [Tumbler] Section)

662) Auxiliary Contact BlockThe Auxiliary Contact Block is mounted on the side of the overload. Its function is to sense anoverload trip, thereby tri

67I. FILTER/REGULATOR ASSEMBLYThe purpose of the filter is to remove bulk liquids and solid particles from the compressed air stream. The filterelem

68J. DOOR SYSTEMSThe dryer utilizes two (2) styles of doors, which are Manual Doors and Pneumatic Automatic Doors.1.Manual Door DescriptionThe Manual

693.Door Component Replacement and Removala. Manual Door Replacement or Removal1) Discontinue electrical power to thedryer.2) Remove the two (2) 1/4-2

70b. Pneumatic Automatic Door Replacement or RemovalAUTOMATIC DOORS1) Discontinue electrical power to the dryer.2) Remove the two (2) 1/4-20 x 1/2” bo

71c. Cable Cylinder Replacement or Removal1) Discontinue electrical power to the dryer.2) Remove the two (2) 1/4-20 x 1/2” bolts from each side of the

72d. Proximity Switch Replacement1) Discontinue electrical power to the dryer.2) Remove the two (2) 1/4-20 x 1/2” bolts fromeach side of the middle gu

73f. 4-Way Valve, 3-Way Valve, and Supply Air Disable Valve Replacement1) Discontinue electrical powerto the dryer.2) Disconnect compressed airsupply

74K. CONTROL and ELECTRICAL SYSTEMLadder Diagram

75

4ML-310 Reference Guide(Base Section)

76CAUTION: When servicing the HIGH VOLTAGE section of the dryer, the ELECTRICALPOWER MUST BE DISABLED. THE “EMERGENCY STOP” (E-Stop)BUTTON DOES NOT D

773) 24 VAC TransformerThe 24 VAC transformer consists of CB5 (Circuit Breaker) which is the primary fusing for thetransformer. For the proper rating

78c) Dryer level switches circuit branch...(1) On 1-Way Tilt models, this switch is in series with the dry enable.(2) On 2-Way Tilt models...one (1) p

79Next reverse leads to temp sensor black to black and red to white. At that point you measureapproximately 1.8 amps, this is the turn on voltage of

80a) The Programmable Logic Controller (PLC) module has thirteen (13) input relays which arelabeled #0 through #13 and nine (9) output relays labeled

812. Electrical Component Replacementa. Control Voltage Transformer Replacement (refer to the illustration on page 83)1) Discontinue electrical power

82

83b. Programmable Logic Controller (PLC) Replacement1) Discontinue electrical power to the dryer.2) Mark and identify the wires that will be removedfo

845) To install new Microprocessor Controller (computer) input/output (I/O) board, reverse Step #4 thruStep #1.6) Reestablish electrical power to the

855) With finger tip, gently push and turn the bulb to unlock.NOTE: A piece of tubing with an inside diameter the size of bulb may assist in bulb remo

5SECTION ISAFETY PRECAUTIONSCAUTION: The dryer should never be left unattended while in operation.WARNING: For your safety, the information in this ma

86Verify that the tilt switch arm is not in the vertical position or damage will result.10) Holding the tilt arm, tighten up (snug up) on the nut.11)

87L. BASKET (Tumbler) SYSTEM1. Basket (tumbler) Drive SystemThe basket (tumbler) is supported and driven by four (4) 11-inch (27.94 cm) diameter driv

88WARNING: TO ENSURE THAT THE DRIVE IS NOT UNEXPECTEDLY STARTED, TURNOFF and LOCKOUT and/or TAG POWER SOURCE BEFORE PROCEEDING.FAILURE TO OBSERVE THES

891) Discontinue electrical power to the dryer.2) Loosen turnbuckle and remove V-belts.3) Install new V-belts.NOTE: Replace V-belts in matched sets (b

903) Mark the position of the pillow blockbearing on the mounting pad andloosen the setscrews.4) Insert blocks of wood under thebasket (tumbler) - acc

915) Reestablish electrical power to the dryer.f. Pillow Block Bearing(s) Replacement1) Discontinue electrical power to the dryer.2) Follow Step #2 th

9210) Secure the gear reducer to the drive shaft by reinstalling the three (3) bolts into the taper lockbushing and tighten evenly for proper mounting

93b. Retaining Wheel(s) Replacement1) Discontinue electrical power to the dryer.2) Remove the four (4) Phillips pan head screws to remove the cover.3)

944. Basket (tumbler) Electrical Component(s)a. Basket (tumbler) Thermal Magnetic Starter (TMS) and Auxiliary Contact Block Replacement1) Discontinue

9511) Replace ALL wires removed in Step #5 (refer to the previous page [page 94]).12) Mount the top of the thermal magnetic starter (TMS) to the top o